Telescopic chute.



A. SMITH.

TELESCOPIC CHUTE.

APPLICATION FILED'MAR. 24. 1914.

Patented May2, 1916.

2 SHEETSSHEET I- WITNESSES D INVEQNTOR HususTus -5/YI ITH BY 4 aATTORNEY5 THE COLUMBIA FLANOGRAPH 120.. WASHINGTON. D. C.

A. SMITH.

TELESCOPIC CHUTE. APPLICATION FILED MAR. 24, 1914.

Patent-ed May 2,1916.

2 SHEETS--SHEET 2.

W ITNESSES INVENTOR AT 4 RE;

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AUeUsTUs SMITH, 0E ROSELLE, N W JERSEY, ASSIGNOR, TO BERGEN POINT IRONWORKS, 0E BAYONNE, NEW JERSEY, a CORPORATION OF NEW JERSEY.

TELESGOPIC CHUTE.

merges.

Specification of Letters Patent.

Patented May 2, 19116..

Application filed March 24, 1914. Serial No. 826,909.

I To all whom it may concern Be it known that I, AUGUSTUS SMITH, acitizen of the United States of America, and residing at Roselle, in thecounty of Union and State of New Jersey, have invented a certain new anduseful Improvement in Telescopic Chutes, of which the'following is aspecification.

The present invention relates to chutes and particularly to animprovement in apparatus for operating telescopic chutes so that theycan be conveniently lengthened,shortened and swung in vertical andhorizontal planes. 7

' In the accompanying drawings, Figures 1 to 4 are side elevations, moreor less diagrammatic, and. illustrating four difierent embodiments of myinvention.

In Fig. 1- I have shown a chute with single telescopic portion suspendedfrom an inclined boom, the vertical angle of which is controlled bymeans of a topping up rope.

Fig. 2 shows a similar telescopic chute and boom but, in this case, thevertical angle of the boom is controlled by a strut which takes theplace of the topping up rope in Fig. 1.

, Fig. 3'shows the chute with two telescopic portions and a smallauxiliary boom hinged on the axis of-the large inclined boom to getherwith topping up rope. Fig. 4 shows a difi'erent method of reeving thechute suspension ropes and a difierent method of getting the parallelmotion secured in the preceding arrangements. I I

In general the apparatus consists of pivoted inclined chute with one ormore telescopic or extension pieces, the extension pieces beingsupported by ropes of fixed length to rolling or sliding trolleys which1 operate on an inclined boom." The centers and lengths of the differentmembers are taken so that the boom and chute are, at all times,practically. parallel to each other so that, to adjust the overalllength of the chute, it is only necessary to move the rolling or Slidingtrolley on its boom and the telescopic portion will then slide in or outwithout changing the vertical angle on which the chute is operating.When it is desired tochange the angle of operation of the chute, thevertical angle of the boom is correspondingly changed andthe differenttelescopic portions of the chute are held in a straight line at alltimes, due to the fact that .the boom is at all times parallel tothe-chute.

Referring to the arrangement shown in Fig. l, the main portion of thechute C is pivoted at P about which center it is free to rotate. Thetelescopic portion of the chute E is suspended by the two suspensionrods or ropes S and S from the trolley T which runs 011 the boom B onthe rollers Rand R The boom B is hinged at the pin H, vertically alinedwith the pivot P, and its vertical angular position is adjusted by thetopping up rope U controlled by the drum D. The in and out position ofthe trolley T in respect to the boom B is controlled by a trolley rope Aleading to a drum B The vertical angular position of the chute may bechanged by raising or lowering the boom B by means of the topping uprope U. The chute will then revolve about the hinge P and the telescopicportion E will not change its position relative to the main portion C sothat the total length of the chute will remain the same and thetelescopic portion E will be held paralby means of a strut F pivoted tothe boom B at and having at its inner end a roller K rolling on a.vertical track L. The position of the roller Kon the track L is con-'trolled by a pull down rope U which winds on the drum D When the strut Fis pulled down toward the drum D it shoves boom B toward its outboardposition. The Opera-. tion of the telescopic chute E and trolley T isthe same in this case as described above for Fig. 1.

In the construction shown in Fig. 3, an

intermediate telescopic chute, I is introe duced between the main chuteC and the end portion of the telescopic chute E. This intermediate chuteI is suspended by means of a suspension rod or rope M from a trolley Nwhich also runs on the boom B. The length of the suspension rod M is thesame as the suspension rods S and S supporting the chute E so that theintermediate tele scopic chute I. theend telescopic chute E V and themain chute C are maintained at all times parallel. Obviously the i onetelescopic intermediate chute I could be 1ncreased to any reasonablenumber to suit varying conditions and these intermediate chutes couldalso be .used in the constructions illustrated in Figs. 1, 2 and -l.

Referring again to the apparatus shownin Fig.1, when this apparatus ishoused in, 6., when the chute C and boom 'Bare hanging nearly vertical,it is hard to pull the boom B out .on account of the poor lead of thetopping up rope U. To meet'this difiiculty, which is also present in theconstruction shown in Fig. 3, an auxiliary boom 0' (Fig. 3) may beintroduced. When the boom 13 is hanging nearly vertical this auxiliaryboom 0 is also nearly 1 vertical, but when the topping up rope U istaken in, the auxiliary boom swings out Without imparting motion to theboom B until it has reached a position where its limit rope Q getstaut,atwhich point the boom B and, therefore, the chute, starts to 7 rise andthis device gives a good lead to the topping up rope U.

In the foregoing Figs. 1 2 and 3;, the boomand chute are at all timespractically parallel toeach other so that the main chute and thetelescopic portions are main tained. parallel in all positions. Fig. atshowsanother method by which the parallelism of the main chute and thetelescopic portions can be maintained even when the boom is not parallelto the chute. In this case, instead of the telescopic chute suspensionropes being made fast directly to the trolleys as in the former cases,they lead over sheaves Von the trolley T N and are then made fast at theend of the boom B. In the position shown in Fig. 4: the boom 13 ishorizontal and the chute is standing at 45 degrees. lVhen a given motionis imparted to thetr'olleys T in the horizontal direction, acorresponding vertical motion is glven to 'thesuspension ropes S, S

'M Thus, if the trolleys T, N are rolled in one foot,,the suspensionropes S, S M

' will also move in one foot inasmuch as'they always hang vertically,and, at the same time they will beisimultaneously shortened up in lengthone foot. The operation of the telescopic chutes consequently will besimilar to thatfdescribed above for'Figs. 1, 2

/ and 3.

The particular advantage of the con-' struction of this apparatus isthat the length and vertical angle of the telescopic chute can, at allpositions, be easily and simply controlled with little or no possibilityof the chutes jamming one on the other as is usually the case with otherforms I of apparatus.

I claim as my invention 1. In apparatus of the character described,

a chute having a telescopic extension section,

a pivotal support for the upper end of the chute, an overhead supportfor holding said chute in normally inclined operating position, andmeans traveling longitudinally on said support for extending andretracting said extension section of the chute in inclined position.

2. In apparatus of the character described, achute having a telescopicextension section, a pivotal support for the upper end of. the chute, anoverhead support for holding said chute in normally inclined operatingposition, and means traveling longitudinally on said support forextending and retracting said extension section of the chute in inclinedposition, in telescopic parallelism to the pivoted top section thereof.

3. In apparatus of the character described, a chute having a telescopicextension section, a pivotal support for the upper end of the chute, anoverhead pivoted boom for raising said chute to normally inclinedoperating position, and means traveling longitudinally on said supportfor extending and retracting said extension section in inclinedposition. 7

- the chute, an overhead boom pivoted on an.

axis vertically alined with that of the chute, and means travelinglongitudinally on said boom for extending and retracting the extensionsection of the chute in inclined posi tion.

6. In apparatus of the character described, a chute having a telescopicextension section, a pivotal support for the upper end of the chute, anoverhead boom pivoted on an axis vertically alined with that of thechute, and means traveling longitudinally on said boom for extending andretracting the extension section of the chute in inclined position, intelescopic parallelism to the pivoted top section thereof. 7. Inapparatus of the character described, a chute having a telescopicextension section, a pivotal support for the upper end of the chute, anoverhead support for holding said chute in normally inclined operatingposi-' tion, means traveling longitudinally on said support forextending and retracting said extension section of the chute in inclinedposition, and a supporting rope of fixed length operatively connected tosaid traveling means and to said extension section for supporting thelatter.

8. In apparatus of the character described, a chute having a telescopicextension section, a pivotal support for the upper end of the chute, anoverhead support for holding said chute in normally inclined operatingposition, means traveling longitudinally on said support for extendingand retracting said extension section of the chute in inclined position,and a supporting rope of fixed length operatively connected to saidtraveling means and to said extension section for supporting the latter,in telescopic parallelism to the pivoted upper section of the chute.

9. In apparatus of the character described, a pivoted telescopic chute,an overhead supporting boom, trolleys traveling longitudinally on saidboom and connections there from to the telescopic sections of the chute,said connections being such as to maintain the chute sections parallelin either extended or retracted position, together with a topping uprope for lifting and lowering the boom independent of the longitudinalmovesaid boom and connections therefrom to the telescopic sections ofthe chute, a topping up rope for lifting and lowering the boom and anauxiliary boom to which said topping up rope is directly connected, saidauxiliary boom having a slack connection to the outer end of the mainboom, for the purpose described.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses.

AUGUSTUS SMITH.

Witnesses:

SAMUEL J. WHEELER, 7 P. B. Os'rROM.

Copies of thie patent may be obtained for five cents each, by addressingthe "commissioner oi Patents.

,, Waahinmon, D. U.

